Patents by Inventor R. Robert Hayes

R. Robert Hayes has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Low NOx premix burner apparatus and methods
    Patent number: 6616442
    Abstract: Low NOx axial premix burner apparatus and methods for burning fuel gas are provided by the present invention. The methods of the invention are basically comprised of the steps of mixing a first portion of the fuel gas and all of the air to form a lean primary fuel gas-air mixture, discharging the lean primary fuel gas-air mixture into the furnace space whereby the mixture is burned in a primary combustion zone therein, discharging a second portion of the fuel gas into the primary combustion zone to stabilize the flame produced therein and discharging the remaining portion of the fuel gas into a secondary combustion zone in the furnace space.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: September 9, 2003
    Assignee: John Zink Company, LLC
    Inventors: Demetris Venizelos, R. Robert Hayes, Richard T. Waibel, Wesley R. Bussman
  • Low NOx premix burner apparatus and methods
    Publication number: 20020064740
    Abstract: Low NOx axial premix burner apparatus and methods for burning fuel gas are provided by the present invention. The methods of the invention are basically comprised of the steps of mixing a first portion of the fuel gas and all of the air to form a lean primary fuel gas-air mixture, discharging the lean primary fuel gas-air mixture into the furnace space whereby the mixture is burned in a primary combustion zone therein, discharging a second portion of the fuel gas into the primary combustion zone to stabilize the flame produced therein and discharging the remaining portion of the fuel gas into a secondary combustion zone in the furnace space.
    Type: Application
    Filed: November 30, 2000
    Publication date: May 30, 2002
    Inventors: Demetris Venizelos, R. Robert Hayes, Richard T. Waibel, Wesley R. Bussman